Atlanta @ Colorado preview

Last Meeting ( Apr 23, 2013 ) Atlanta 10, Colorado 2

The Atlanta Braves have unleashed an awesome display of power with 35 home runs - most in the majors - en route to their major league-best 15-5 start, and even a cold Coors didn't dull their senses. Atlanta will try for a three-game sweep when it visits the Colorado Rockies on Wednesday in the finale of their three-game series. The Braves hit a combined six homers in their 4-3 and 10-2 victories in Tuesday's doubleheader, including the opener played in a Coors Field-record 23 degrees.

Leading the assault is Justin Upton, who has a major league-leading 11 home runs and set an Atlanta franchise record for homers in April. Justin Upton and his brother B.J. hit back-to-back home runs for the first time in Tuesday's nightcap. The Braves' Tim Hudson will make his second attempt at career victory No. 200 on Wednesday, although he is 0-2 with an 8.04 ERA in five career starts in Denver. The forecast calls for partly cloudy skies and a temperature of 50 degrees.

TV: 3:10 p.m. ET, Fox Sports South (Atlanta), ROOT Sports (Colorado)

PITCHING MATCHUP: Braves RH Tim Hudson (2-1, 4.50 ERA) vs. Rockies RH Tyler Chatwood (NR)

Hudson allowed six runs and nine hits in four innings in Atlanta's 6-0 loss at Pittsburgh on Friday. In his previous two starts - both victories, the 37-year-old yielded two runs and seven hits with 10 strikeouts in 13 2/3 innings. While Hudson has struggled in Denver, he is 5-2 in 10 career starts against the Rockies. Colorado's roster is hitting an eye-popping .385 against Hudson, but he has handled Troy Tulowitzki and Carlos Gonzalez (combined 6-for-22, one RBI).

Rockies manager Walt Weiss decided Tuesday that Chatwood would move into the rotation to replace Jhoulys Chacin, who was placed on the 15-day disabled list Sunday with a strained lower back. Chatwood was scratched from his start Monday at Triple-A Colorado Springs, where he was 1-0 with a 1.84 ERA and 17 strikeouts in three starts (14 2/3 innings). The 23-year-old Fontana, Calif., native was 5-6 in 19 games (12 starts) with a 5.43 ERA with Colorado in 2012.

WALK-OFFS

1. Atlanta RF Reed Johnson went 4-for-4 with three doubles in his first start in place of Jason Heyward, who was put on the 15-day disabled list after undergoing an appendectomy Monday.

2. Rockies 1B Todd Helton has missed the last four games with a strained left forearm and could be headed for the disabled list.

3. The Uptons became the second brothers in major-league history to hit back-to-back homers. Pittsburgh's Lloyd and Paul Waner accomplished the feat Sept. 15, 1938.

PREDICTION: Braves 9, Rockies 8